Find Whether a Number is a Palindrome or Not in Java

The following program demonstrates how to Find Whether a Number is a Palindrome or Not in Java.

In order to find whether a number is a palindrome or not just need to find its reverse. After that, we can compare both the number and its reverse. If both are the same, then the number is a palindrome.

The following link contains the program to find the reverse of a number.

https://www.programmingempire.com/find-the-reverse-of-a-number-in-java/

import java.util.Scanner;
import java.lang.Math;
public class Exercise17
{
	public static void main(String[] args) {
		int num, n, i, sum, len, rem;
		System.out.println("Enter a Number: ");
     		num=(new Scanner(System.in)).nextInt();					
     		len=0;
		n=num;
		while(n>0)
		{
			n=n/10;
			len++;
		}
 		sum=0;
		i=len-1;
		n=num;
		while(n>0)
     		{
        		rem=n%10;
        		sum=sum+rem*(int)(Math.pow(10, i));
        		n=n/10;
        		i=i-1;
      		}
		if(sum==num)
		{
     			System.out.println(num+" is a palindrome");
		}
		else
		{
     			System.out.println(num+" is not a palindrome");
		}
	}
}

Output

**A Program to Find Whether a Number is a Palindrome or Not in Java**

Further Reading